import TyCon
import Var
import VarEnv
+import NameEnv
import DsMonad
import PrelNames
+import Outputable
+
vectorise :: HscEnv -> ModGuts -> IO ModGuts
vectorise hsc_env guts
| not (Opt_Vectorise `dopt` dflags) = return guts
-- Mapping from variables to their vectorised versions
--
vect_vars :: VarEnv Var
+
+ -- Exported variables which have a vectorised version
+ --
+ , vect_exported_vars :: VarEnv (Var, Var)
+
+ -- Mapping from TyCons to their vectorised versions.
+ -- TyCons which do not have to be vectorised are mapped to
+ -- themselves.
+ , vect_tycons :: NameEnv TyCon
}
initVEnv :: VectInfo -> DsM VEnv
initVEnv info
= return $ VEnv {
- vect_vars = mapVarEnv snd $ vectInfoCCVar info
+ vect_vars = mapVarEnv snd $ vectInfoCCVar info
+ , vect_exported_vars = emptyVarEnv
+ , vect_tycons = mapNameEnv snd $ vectInfoCCTyCon info
}
-- FIXME
-updVectInfo :: VEnv -> VectInfo -> VectInfo
-updVectInfo env info = info
+updVectInfo :: VEnv -> ModGuts -> ModGuts
+updVectInfo env guts = guts { mg_vect_info = info' }
+ where
+ info' = info {
+ vectInfoCCVar = vect_exported_vars env
+ , vectInfoCCTyCon = tc_env
+ }
+
+ info = mg_vect_info guts
+ tyenv = mg_types guts
+
+ tc_env = mkNameEnv [(tc_name, (tc,tc')) | tc <- typeEnvTyCons tyenv
+ , let tc_name = tyConName tc
+ , Just tc' <- [lookupNameEnv (vect_tycons env) tc_name]]
newtype VM a = VM { runVM :: Builtins -> VEnv -> DsM (VEnv, a) }
(env', x) <- p bi env
runVM (f x) bi env'
+builtin :: (Builtins -> a) -> VM a
+builtin f = VM $ \bi env -> return (env, f bi)
+
+readEnv :: (VEnv -> a) -> VM a
+readEnv f = VM $ \bi env -> return (env, f env)
+
+setEnv :: VEnv -> VM ()
+setEnv env = VM $ \_ _ -> return (env, ())
+
+updEnv :: (VEnv -> VEnv) -> VM ()
+updEnv f = VM $ \_ env -> return (f env, ())
+
+
+lookupTyCon :: TyCon -> VM (Maybe TyCon)
+lookupTyCon tc = readEnv $ \env -> lookupNameEnv (vect_tycons env) (tyConName tc)
+
+-- ----------------------------------------------------------------------------
+-- Bindings
+
vectoriseModule :: VectInfo -> ModGuts -> DsM ModGuts
vectoriseModule info guts
= do
builtins <- initBuiltins
env <- initVEnv info
(env', guts') <- runVM (vectModule guts) builtins env
- return $ guts' { mg_vect_info = updVectInfo env' info }
+ return $ updVectInfo env' guts'
vectModule :: ModGuts -> VM ModGuts
vectModule guts = return guts